yeah add to that the fact that icloud backups aren't e2e encrypted (no SV infrastructure services are). we need zero-knowledge systems now.
https://www.theverge.com/2020/1/21/21075033/apple-icloud-end...
Of course, you've always been able to do encrypted backups to your local computer.
why can't i download a git archive of my google docs? the versioning feature only works on the proprietary web app - google's platform.
these are all inter-related problems, and all strategies used on purpose to lock people in and make them dependent so as to be able to extract economic rents.